watcher

update DataModel by Nova notifications

Registered by licanwei on 2018-09-10

Watcher consumes Nova notifications to update its Data Model. now only several notifications were used,
there are many notifications need to be consider, such as instance poweron/poweroff,
they all change the state of instance, Watcher should update the state of instance in the Data Model.
We should consume all the Nova notifications that influence the state of instance or compute.
And Nova plan to deprecate the legacy notifications, Watcher should consume just the versioned notifications.
https://docs.openstack.org/nova/latest/reference/notifications.html#existing-versioned-notifications

Blueprint information

Status:: Complete

Approver:: Alexander Chadin

Priority:: Medium

Drafter:: licanwei

Direction:: Needs approval

Assignee:: licanwei

Definition:: Approved

Series goal:: Accepted for stein

Implementation:: Implemented

Milestone target:: stein-1

Started by: licanwei on 2018-11-17

Completed by: licanwei on 2018-11-17

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I agree, we need a spec here.
BTW, I'd propose to suggest removing of legacy notifications as bug since this process is distinct and is pretty straightforward.
[licanwei]https://bugs.launchpad.net/watcher/+bug/1793048
Could you please include this blueprint into yours https://blueprints.launchpad.net/watcher/+spec/exclude-locked-instances ?
yes

Gerrit topic: https://review.openstack.org/#q,topic:bp/update-datamodel-by-nova-notifications,n,z

Addressed by: https://review.openstack.org/606352
update datamodel by nova notifications

Addressed by: https://review.openstack.org/606830
update datamodel by nova notifications

(?)

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